1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package android.support.text.emoji.widget;
17
18import static android.support.text.emoji.util.EmojiMatcher.sameCharSequence;
19
20import static junit.framework.TestCase.assertNotNull;
21import static junit.framework.TestCase.assertSame;
22
23import static org.junit.Assert.assertNull;
24import static org.junit.Assert.assertTrue;
25import static org.mockito.Matchers.any;
26import static org.mockito.Matchers.anyInt;
27import static org.mockito.Matchers.eq;
28import static org.mockito.Mockito.mock;
29import static org.mockito.Mockito.never;
30import static org.mockito.Mockito.times;
31import static org.mockito.Mockito.verify;
32import static org.mockito.Mockito.when;
33
34import android.support.test.filters.SmallTest;
35import android.support.test.runner.AndroidJUnit4;
36import android.support.text.emoji.EmojiCompat;
37import android.text.Spannable;
38import android.text.SpannableString;
39import android.widget.TextView;
40
41import org.junit.Before;
42import org.junit.Test;
43import org.junit.runner.RunWith;
44
45@SmallTest
46@RunWith(AndroidJUnit4.class)
47public class EmojiInputFilterTest {
48
49    private EmojiInputFilter mInputFilter;
50    private EmojiCompat mEmojiCompat;
51
52    @Before
53    public void setup() {
54        final TextView textView = mock(TextView.class);
55        mEmojiCompat = mock(EmojiCompat.class);
56        EmojiCompat.reset(mEmojiCompat);
57        when(mEmojiCompat.getLoadState()).thenReturn(EmojiCompat.LOAD_STATE_SUCCEEDED);
58        mInputFilter = new EmojiInputFilter(textView);
59    }
60
61    @Test
62    public void testFilter_withNullSource() {
63        assertNull(mInputFilter.filter(null, 0, 1, null, 0, 1));
64        verify(mEmojiCompat, never()).process(any(CharSequence.class));
65        verify(mEmojiCompat, never()).process(any(CharSequence.class), anyInt(), anyInt());
66    }
67
68    @Test
69    public void testFilter_withString() {
70        final String testString = "abc";
71        when(mEmojiCompat.process(any(CharSequence.class), anyInt(), anyInt()))
72                .thenReturn(new SpannableString(testString));
73        final CharSequence result = mInputFilter.filter(testString, 0, 1, null, 0, 1);
74
75        assertNotNull(result);
76        assertTrue(result instanceof Spannable);
77        verify(mEmojiCompat, times(1)).process(sameCharSequence("a"), eq(0), eq(1));
78    }
79
80    @Test
81    public void testFilter_withSpannable() {
82        final Spannable testString = new SpannableString("abc");
83        when(mEmojiCompat.process(any(Spannable.class), anyInt(), anyInt())).thenReturn(testString);
84
85        final CharSequence result = mInputFilter.filter(testString, 0, 1, null, 0, 1);
86
87        assertNotNull(result);
88        assertSame(result, testString);
89        verify(mEmojiCompat, times(1)).process(sameCharSequence(testString.subSequence(0, 1)),
90                eq(0), eq(1));
91    }
92
93    @Test
94    public void testFilter_whenEmojiCompatLoading() {
95        final Spannable testString = new SpannableString("abc");
96        when(mEmojiCompat.getLoadState()).thenReturn(EmojiCompat.LOAD_STATE_LOADING);
97
98        final CharSequence result = mInputFilter.filter(testString, 0, 1, null, 0, 1);
99
100        assertNotNull(result);
101        assertSame(result, testString);
102        verify(mEmojiCompat, times(0)).process(any(Spannable.class), anyInt(), anyInt());
103        verify(mEmojiCompat, times(1)).registerInitCallback(any(EmojiCompat.InitCallback.class));
104    }
105
106    @Test
107    public void testFilter_whenEmojiCompatLoadFailed() {
108        final Spannable testString = new SpannableString("abc");
109        when(mEmojiCompat.getLoadState()).thenReturn(EmojiCompat.LOAD_STATE_FAILED);
110
111        final CharSequence result = mInputFilter.filter(testString, 0, 1, null, 0, 1);
112
113        assertNotNull(result);
114        verify(mEmojiCompat, times(0)).process(any(Spannable.class), anyInt(), anyInt());
115        verify(mEmojiCompat, times(0)).registerInitCallback(any(EmojiCompat.InitCallback.class));
116    }
117}
118